Heavy weight capability and Durability made the wheel casters like the VXB005150BAPUF a must use, get your do it yourself object move around from our Toronto biz. Wheel dia. is 150mm or 5.906" inch in inches. Sizes of the caster wheel is 50mm (1.969" inch). The Caster with the wheel from end to end is 190mm = 7.480" inch. Top Plate is the method of installing the caster to your equipment, dimensions are 115mm x 100mm with the holes distance of 72mm x 85mm. The weehl core material is Aluminum and Polyurethane and has a Aluminum and Polyurethane tire with a low friction Double ball beaing. Each caster wheel will carry the load of 882 lb and is Fixed type. The caster wheel temperature range = -40 to 180 F. Buy the VXB005150BAPUF now, we ship on the same day.